Validating MODIS land surface temperature products using long-term nighttime ground measurements

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• 作者：Wenhui Wang ; Shunlin Liang ; Tilden Meyers
• 关键词：Land surface temperature ; MODIS ; Validation ; FLUXNET ; CarboEurope-IP
• 刊名：Remote Sensing of Environment
• 出版年：2008
• 期刊代码：79_00344257
• 类别：ear
• 出版时间：18 March 2008
• 卷：112
• 期：3
• 页码：623-635
• 文件大小：1157 K

摘要

The Moderate Resolution Imaging Spectroradiometer (MODIS), onboard the NASA Terra and Aqua Earth Observing System satellites, provides multiple land surface temperature (LST) products on a daily basis. However, these products have not been adequately validated. This paper presents preliminary results of validating two MODIS Terra daily LST products, MOD11_L2 (version 4) and MOD07_L2 (version 4), using the FLUXNET and Carbon Europe Integrated Project (CarboEurope-IP) long-term ground measurements over eight vegetated sites. Since ground-measured LSTs were only available over one fixed point in each validation site, the study was carefully designed to mitigate the scale mismatch issue by using nighttime ground measurements concurrent to more than 1800 MODIS Terra overpasses.